An early morning runner passes the Tidal Basin in Washington. (AP Photo/J. David Ake)

(Newser)
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The nation's capital leads the way in health. Washington, DC, is the fittest city in the country based on personal health and environmental factors, including access to parks and walkability, Today reports via the American Fitness Index. But there's good news for those outside the city: The survey found a "huge increase" in the number of Americans who said they'd exercised in the last 30 days—up to 76.8% from 68.7% last year. The top 10 cities: